Email Authentication Setup Guides
Step-by-step instructions to configure SPF, DKIM, and DMARC for your domain.
Choose your DNS provider to get started.
Understanding Email Authentication
SPF
Sender Policy Framework
Specify which servers can send emails on behalf of your domain
DKIM
DomainKeys Identified Mail
Add digital signatures to verify email authenticity
DMARC
Domain-based Message Authentication
Define policies for handling failed authentication
Select Your DNS Provider
Cloudflare
Setup guides for SPF, DKIM, and DMARC
GoDaddy
Setup guides for SPF, DKIM, and DMARC
Alibaba Cloud DNS
Setup guides for SPF, DKIM, and DMARC
Tencent Cloud DNSPod
Setup guides for SPF, DKIM, and DMARC
AWS Route 53
Setup guides for SPF, DKIM, and DMARC
Why Email Authentication Matters
Prevent Spoofing
Stop attackers from sending emails pretending to be you
Improve Deliverability
Authenticated emails are more likely to reach the inbox
Build Trust
Recipients and email providers trust verified senders
Protect Brand
Prevent phishing attacks that damage your reputation
Check Your Current Configuration
Use our free tool to see if your domain's email authentication is properly configured.
Check Your Domain